using System;
using System.Collections;

namespace Bluebird
{
	/// <summary>
	/// Summary description for Measure.
	/// </summary>
	public class Measure
	{
		//these two arraylists better have the
		//same size all the time
		private ArrayList clips;

		private int numClips = 0;
		
		public Measure() {
			clips = new ArrayList(5);
			numClips = 0;
		}

		public void addClip( Clip clip ) {
			clips.Add( clip );
			numClips++;
			Console.Out.WriteLine("compacting from add");
			this.compactClips(0);
		}

		public void deleteClip( int clipNum ) 
		{
			clips.RemoveAt(clipNum);

			if(numClips > 0) 
			{
				numClips--;
				this.compactClips(1);
			}
		}

		public void play() {
			for(int i = 0; i < numClips; i++){
				((Clip)clips[i]).playSound();
			}
		}

		public bool stillPlaying()
		{
			for(int i = 0; i < numClips; i++)
			{
				if(((Clip)clips[i]).stillPlaying())
					return true;
			}
			return false;
		}
		
		public Clip getClip(int index)
		{
			if( clips.Count == 0 ) {}
			if(index < clips.Count)
				return((Clip)clips[index]);
			else
				return null;
		}
		private void compactClips(int test) 
		{
			//go through list and find a null
			for( int i = 1; i < numClips; i++ ) 
			{
				
				while( clips[i-1] == null && clips[i] != null ) 
				{
					//switch clips
					clips[i-1] = clips[i];
					
					//move back
					i = i-1;
					
					//if at the beginning
					//stop moving back
					if( i == 0 )
						break;
				}
			}
		}

		public int getNumClips()
		{
			return numClips;
		}

		public void deleteAllClips()
		{

			for(int i = numClips-1; i >= 0; i--)
			{
				if(clips[i] != null)
					clips.RemoveAt(i);
			}
			numClips = 0;
		}
		
		public bool isEmpty()
		{
			return(numClips == 0);
		}

		public void playClip(int curClip)
		{
			((Clip)clips[curClip]).playSound();
		}

		public void disposeAllBuffers() {
			for(int i = numClips-1; i >= 0; i--) {
				if(clips[i] != null) {
					((Clip)clips[i]).disposeBuffer();
				}	
			}
		}
	}
}